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zalisa [80]
3 years ago
14

The area of the smallest equilateral triangle with one vertex on each of the sides of the right triangle with side lengths and

img src="https://tex.z-dn.net/?f=%242%5Csqrt%7B3%7D%2C~5%2C%24%20and%20%24%5Csqrt%7B37%7D%2C%24%20" id="TexFormula1" title="$2\sqrt{3},~5,$ and $\sqrt{37},$ " alt="$2\sqrt{3},~5,$ and $\sqrt{37},$ " align="absmiddle" class="latex-formula">as shown, is $\frac{m\sqrt{p}}{n},$ where m, n, and p are positive integers, m and n are relatively prime, and p is not divisible by the square of any prime. What is m + n + p?
Mathematics
2 answers:
Gre4nikov [31]3 years ago
7 0
Set up the given triangle on x-y coordinates with right angle at (0,0). So the two vertices are at (5,0) and (0,2sqrt{x} n]{3})

let (a,0) and (0,b) be two vertices of the<span> equilateral triangle. So the third vertex must be at </span>(\frac{a+\sqrt{3}b}{2} ,  \frac{b+\sqrt{3}a}{2} )

for a pt (x,y) on line sx+ty=1, the minimum of \sqrt{x^{2} + {y^{2} }
equals to \frac{1}{ \sqrt{ s^{2} +  t^{2} } }

smallest value happens at \frac{10 \sqrt{3} }{67}

so area is \frac{75\sqrt{3}}{67}

hence m=75, n=67, p=3
m+n+p = 75+67+3 = 145

dedylja [7]3 years ago
5 0
Hey there,

Your correct answer final answer to this question would be 145.

Hope this helps.

~Jurgen
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